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TOMOYO Linux Cross Reference
Linux/include/linux/acpi.h

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  1 /*
  2  * acpi.h - ACPI Interface
  3  *
  4  * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
  5  *
  6  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  7  *
  8  * This program is free software; you can redistribute it and/or modify
  9  * it under the terms of the GNU General Public License as published by
 10  * the Free Software Foundation; either version 2 of the License, or
 11  * (at your option) any later version.
 12  *
 13  * This program is distributed in the hope that it will be useful,
 14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16  * GNU General Public License for more details.
 17  *
 18  * You should have received a copy of the GNU General Public License
 19  * along with this program; if not, write to the Free Software
 20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 21  *
 22  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 23  */
 24 
 25 #ifndef _LINUX_ACPI_H
 26 #define _LINUX_ACPI_H
 27 
 28 #include <linux/errno.h>
 29 #include <linux/ioport.h>       /* for struct resource */
 30 #include <linux/resource_ext.h>
 31 #include <linux/device.h>
 32 #include <linux/property.h>
 33 
 34 #ifndef _LINUX
 35 #define _LINUX
 36 #endif
 37 #include <acpi/acpi.h>
 38 
 39 #ifdef  CONFIG_ACPI
 40 
 41 #include <linux/list.h>
 42 #include <linux/mod_devicetable.h>
 43 #include <linux/dynamic_debug.h>
 44 
 45 #include <acpi/acpi_bus.h>
 46 #include <acpi/acpi_drivers.h>
 47 #include <acpi/acpi_numa.h>
 48 #include <acpi/acpi_io.h>
 49 #include <asm/acpi.h>
 50 
 51 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
 52 {
 53         return adev ? adev->handle : NULL;
 54 }
 55 
 56 #define ACPI_COMPANION(dev)             ((dev)->acpi_node.companion)
 57 #define ACPI_COMPANION_SET(dev, adev)   ACPI_COMPANION(dev) = (adev)
 58 #define ACPI_HANDLE(dev)                acpi_device_handle(ACPI_COMPANION(dev))
 59 
 60 static inline void acpi_preset_companion(struct device *dev,
 61                                          struct acpi_device *parent, u64 addr)
 62 {
 63         ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
 64 }
 65 
 66 static inline const char *acpi_dev_name(struct acpi_device *adev)
 67 {
 68         return dev_name(&adev->dev);
 69 }
 70 
 71 enum acpi_irq_model_id {
 72         ACPI_IRQ_MODEL_PIC = 0,
 73         ACPI_IRQ_MODEL_IOAPIC,
 74         ACPI_IRQ_MODEL_IOSAPIC,
 75         ACPI_IRQ_MODEL_PLATFORM,
 76         ACPI_IRQ_MODEL_COUNT
 77 };
 78 
 79 extern enum acpi_irq_model_id   acpi_irq_model;
 80 
 81 enum acpi_interrupt_id {
 82         ACPI_INTERRUPT_PMI      = 1,
 83         ACPI_INTERRUPT_INIT,
 84         ACPI_INTERRUPT_CPEI,
 85         ACPI_INTERRUPT_COUNT
 86 };
 87 
 88 #define ACPI_SPACE_MEM          0
 89 
 90 enum acpi_address_range_id {
 91         ACPI_ADDRESS_RANGE_MEMORY = 1,
 92         ACPI_ADDRESS_RANGE_RESERVED = 2,
 93         ACPI_ADDRESS_RANGE_ACPI = 3,
 94         ACPI_ADDRESS_RANGE_NVS  = 4,
 95         ACPI_ADDRESS_RANGE_COUNT
 96 };
 97 
 98 
 99 /* Table Handlers */
100 
101 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
102 
103 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
104                                       const unsigned long end);
105 
106 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
107 void acpi_initrd_override(void *data, size_t size);
108 #else
109 static inline void acpi_initrd_override(void *data, size_t size)
110 {
111 }
112 #endif
113 
114 #define BAD_MADT_ENTRY(entry, end) (                                        \
115                 (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
116                 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
117 
118 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
119 void __acpi_unmap_table(char *map, unsigned long size);
120 int early_acpi_boot_init(void);
121 int acpi_boot_init (void);
122 void acpi_boot_table_init (void);
123 int acpi_mps_check (void);
124 int acpi_numa_init (void);
125 
126 int acpi_table_init (void);
127 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
128 int __init acpi_parse_entries(char *id, unsigned long table_size,
129                               acpi_tbl_entry_handler handler,
130                               struct acpi_table_header *table_header,
131                               int entry_id, unsigned int max_entries);
132 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
133                                     int entry_id,
134                                     acpi_tbl_entry_handler handler,
135                                     unsigned int max_entries);
136 int acpi_table_parse_madt(enum acpi_madt_type id,
137                           acpi_tbl_entry_handler handler,
138                           unsigned int max_entries);
139 int acpi_parse_mcfg (struct acpi_table_header *header);
140 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
141 
142 /* the following four functions are architecture-dependent */
143 void acpi_numa_slit_init (struct acpi_table_slit *slit);
144 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
145 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
146 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
147 void acpi_numa_arch_fixup(void);
148 
149 #ifdef CONFIG_ACPI_HOTPLUG_CPU
150 /* Arch dependent functions for cpu hotplug support */
151 int acpi_map_cpu(acpi_handle handle, int physid, int *pcpu);
152 int acpi_unmap_cpu(int cpu);
153 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
154 
155 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
156 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
157 #endif
158 
159 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
160 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
161 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
162 void acpi_irq_stats_init(void);
163 extern u32 acpi_irq_handled;
164 extern u32 acpi_irq_not_handled;
165 
166 extern int sbf_port;
167 extern unsigned long acpi_realmode_flags;
168 
169 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
170 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
171 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
172 
173 #ifdef CONFIG_X86_IO_APIC
174 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
175 #else
176 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
177 #endif
178 /*
179  * This function undoes the effect of one call to acpi_register_gsi().
180  * If this matches the last registration, any IRQ resources for gsi
181  * are freed.
182  */
183 void acpi_unregister_gsi (u32 gsi);
184 
185 struct pci_dev;
186 
187 int acpi_pci_irq_enable (struct pci_dev *dev);
188 void acpi_penalize_isa_irq(int irq, int active);
189 
190 void acpi_pci_irq_disable (struct pci_dev *dev);
191 
192 extern int ec_read(u8 addr, u8 *val);
193 extern int ec_write(u8 addr, u8 val);
194 extern int ec_transaction(u8 command,
195                           const u8 *wdata, unsigned wdata_len,
196                           u8 *rdata, unsigned rdata_len);
197 extern acpi_handle ec_get_handle(void);
198 
199 extern bool acpi_is_pnp_device(struct acpi_device *);
200 
201 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
202 
203 typedef void (*wmi_notify_handler) (u32 value, void *context);
204 
205 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
206                                         u32 method_id,
207                                         const struct acpi_buffer *in,
208                                         struct acpi_buffer *out);
209 extern acpi_status wmi_query_block(const char *guid, u8 instance,
210                                         struct acpi_buffer *out);
211 extern acpi_status wmi_set_block(const char *guid, u8 instance,
212                                         const struct acpi_buffer *in);
213 extern acpi_status wmi_install_notify_handler(const char *guid,
214                                         wmi_notify_handler handler, void *data);
215 extern acpi_status wmi_remove_notify_handler(const char *guid);
216 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
217 extern bool wmi_has_guid(const char *guid);
218 
219 #endif  /* CONFIG_ACPI_WMI */
220 
221 #define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
222 #define ACPI_VIDEO_DEVICE_POSTING                       0x0002
223 #define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
224 #define ACPI_VIDEO_BACKLIGHT                            0x0008
225 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
226 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
227 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
228 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
229 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
230 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
231 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
232 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
233 
234 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
235 
236 extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
237 extern long acpi_is_video_device(acpi_handle handle);
238 extern void acpi_video_dmi_promote_vendor(void);
239 extern void acpi_video_dmi_demote_vendor(void);
240 extern int acpi_video_backlight_support(void);
241 extern int acpi_video_display_switch_support(void);
242 
243 #else
244 
245 static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
246 {
247         return 0;
248 }
249 
250 static inline long acpi_is_video_device(acpi_handle handle)
251 {
252         return 0;
253 }
254 
255 static inline void acpi_video_dmi_promote_vendor(void)
256 {
257 }
258 
259 static inline void acpi_video_dmi_demote_vendor(void)
260 {
261 }
262 
263 static inline int acpi_video_backlight_support(void)
264 {
265         return 0;
266 }
267 
268 static inline int acpi_video_display_switch_support(void)
269 {
270         return 0;
271 }
272 
273 #endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
274 
275 extern int acpi_blacklisted(void);
276 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
277 extern void acpi_osi_setup(char *str);
278 
279 #ifdef CONFIG_ACPI_NUMA
280 int acpi_get_node(acpi_handle handle);
281 #else
282 static inline int acpi_get_node(acpi_handle handle)
283 {
284         return 0;
285 }
286 #endif
287 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
288 
289 extern int pnpacpi_disabled;
290 
291 #define PXM_INVAL       (-1)
292 
293 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
294 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
295 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
296                                      struct resource_win *win);
297 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
298                                          struct resource_win *win);
299 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
300 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
301                                  struct resource *res);
302 
303 void acpi_dev_free_resource_list(struct list_head *list);
304 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
305                            int (*preproc)(struct acpi_resource *, void *),
306                            void *preproc_data);
307 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
308                                   unsigned long types);
309 
310 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
311                                                    void *arg)
312 {
313         return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
314 }
315 
316 int acpi_check_resource_conflict(const struct resource *res);
317 
318 int acpi_check_region(resource_size_t start, resource_size_t n,
319                       const char *name);
320 
321 int acpi_resources_are_enforced(void);
322 
323 #ifdef CONFIG_HIBERNATION
324 void __init acpi_no_s4_hw_signature(void);
325 #endif
326 
327 #ifdef CONFIG_PM_SLEEP
328 void __init acpi_old_suspend_ordering(void);
329 void __init acpi_nvs_nosave(void);
330 void __init acpi_nvs_nosave_s3(void);
331 #endif /* CONFIG_PM_SLEEP */
332 
333 struct acpi_osc_context {
334         char *uuid_str;                 /* UUID string */
335         int rev;
336         struct acpi_buffer cap;         /* list of DWORD capabilities */
337         struct acpi_buffer ret;         /* free by caller if success */
338 };
339 
340 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
341 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
342 
343 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
344 #define OSC_QUERY_DWORD                         0       /* DWORD 1 */
345 #define OSC_SUPPORT_DWORD                       1       /* DWORD 2 */
346 #define OSC_CONTROL_DWORD                       2       /* DWORD 3 */
347 
348 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
349 #define OSC_QUERY_ENABLE                        0x00000001  /* input */
350 #define OSC_REQUEST_ERROR                       0x00000002  /* return */
351 #define OSC_INVALID_UUID_ERROR                  0x00000004  /* return */
352 #define OSC_INVALID_REVISION_ERROR              0x00000008  /* return */
353 #define OSC_CAPABILITIES_MASK_ERROR             0x00000010  /* return */
354 
355 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
356 #define OSC_SB_PAD_SUPPORT                      0x00000001
357 #define OSC_SB_PPC_OST_SUPPORT                  0x00000002
358 #define OSC_SB_PR3_SUPPORT                      0x00000004
359 #define OSC_SB_HOTPLUG_OST_SUPPORT              0x00000008
360 #define OSC_SB_APEI_SUPPORT                     0x00000010
361 #define OSC_SB_CPC_SUPPORT                      0x00000020
362 
363 extern bool osc_sb_apei_support_acked;
364 
365 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
366 #define OSC_PCI_EXT_CONFIG_SUPPORT              0x00000001
367 #define OSC_PCI_ASPM_SUPPORT                    0x00000002
368 #define OSC_PCI_CLOCK_PM_SUPPORT                0x00000004
369 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT          0x00000008
370 #define OSC_PCI_MSI_SUPPORT                     0x00000010
371 #define OSC_PCI_SUPPORT_MASKS                   0x0000001f
372 
373 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
374 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       0x00000001
375 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL          0x00000002
376 #define OSC_PCI_EXPRESS_PME_CONTROL             0x00000004
377 #define OSC_PCI_EXPRESS_AER_CONTROL             0x00000008
378 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL      0x00000010
379 #define OSC_PCI_CONTROL_MASKS                   0x0000001f
380 
381 #define ACPI_GSB_ACCESS_ATTRIB_QUICK            0x00000002
382 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
383 #define ACPI_GSB_ACCESS_ATTRIB_BYTE             0x00000006
384 #define ACPI_GSB_ACCESS_ATTRIB_WORD             0x00000008
385 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK            0x0000000A
386 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE        0x0000000B
387 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL        0x0000000C
388 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL       0x0000000D
389 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES        0x0000000E
390 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS      0x0000000F
391 
392 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
393                                              u32 *mask, u32 req);
394 
395 /* Enable _OST when all relevant hotplug operations are enabled */
396 #if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
397         defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&          \
398         defined(CONFIG_ACPI_CONTAINER)
399 #define ACPI_HOTPLUG_OST
400 #endif
401 
402 /* _OST Source Event Code (OSPM Action) */
403 #define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
404 #define ACPI_OST_EC_OSPM_EJECT                  0x103
405 #define ACPI_OST_EC_OSPM_INSERTION              0x200
406 
407 /* _OST General Processing Status Code */
408 #define ACPI_OST_SC_SUCCESS                     0x0
409 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
410 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
411 
412 /* _OST OS Shutdown Processing (0x100) Status Code */
413 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
414 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
415 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
416 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
417 
418 /* _OST Ejection Request (0x3, 0x103) Status Code */
419 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
420 #define ACPI_OST_SC_DEVICE_IN_USE               0x81
421 #define ACPI_OST_SC_DEVICE_BUSY                 0x82
422 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
423 #define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
424 
425 /* _OST Insertion Request (0x200) Status Code */
426 #define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
427 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
428 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
429 
430 extern void acpi_early_init(void);
431 extern void acpi_subsystem_init(void);
432 
433 extern int acpi_nvs_register(__u64 start, __u64 size);
434 
435 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
436                                     void *data);
437 
438 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
439                                                const struct device *dev);
440 
441 extern bool acpi_driver_match_device(struct device *dev,
442                                      const struct device_driver *drv);
443 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
444 int acpi_device_modalias(struct device *, char *, int);
445 void acpi_walk_dep_device_list(acpi_handle handle);
446 
447 struct platform_device *acpi_create_platform_device(struct acpi_device *);
448 #define ACPI_PTR(_ptr)  (_ptr)
449 
450 #else   /* !CONFIG_ACPI */
451 
452 #define acpi_disabled 1
453 
454 #define ACPI_COMPANION(dev)             (NULL)
455 #define ACPI_COMPANION_SET(dev, adev)   do { } while (0)
456 #define ACPI_HANDLE(dev)                (NULL)
457 
458 struct fwnode_handle;
459 
460 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
461 {
462         return false;
463 }
464 
465 static inline struct acpi_device *acpi_node(struct fwnode_handle *fwnode)
466 {
467         return NULL;
468 }
469 
470 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
471 {
472         return NULL;
473 }
474 
475 static inline const char *acpi_dev_name(struct acpi_device *adev)
476 {
477         return NULL;
478 }
479 
480 static inline void acpi_early_init(void) { }
481 static inline void acpi_subsystem_init(void) { }
482 
483 static inline int early_acpi_boot_init(void)
484 {
485         return 0;
486 }
487 static inline int acpi_boot_init(void)
488 {
489         return 0;
490 }
491 
492 static inline void acpi_boot_table_init(void)
493 {
494         return;
495 }
496 
497 static inline int acpi_mps_check(void)
498 {
499         return 0;
500 }
501 
502 static inline int acpi_check_resource_conflict(struct resource *res)
503 {
504         return 0;
505 }
506 
507 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
508                                     const char *name)
509 {
510         return 0;
511 }
512 
513 struct acpi_table_header;
514 static inline int acpi_table_parse(char *id,
515                                 int (*handler)(struct acpi_table_header *))
516 {
517         return -ENODEV;
518 }
519 
520 static inline int acpi_nvs_register(__u64 start, __u64 size)
521 {
522         return 0;
523 }
524 
525 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
526                                            void *data)
527 {
528         return 0;
529 }
530 
531 struct acpi_device_id;
532 
533 static inline const struct acpi_device_id *acpi_match_device(
534         const struct acpi_device_id *ids, const struct device *dev)
535 {
536         return NULL;
537 }
538 
539 static inline bool acpi_driver_match_device(struct device *dev,
540                                             const struct device_driver *drv)
541 {
542         return false;
543 }
544 
545 static inline int acpi_device_uevent_modalias(struct device *dev,
546                                 struct kobj_uevent_env *env)
547 {
548         return -ENODEV;
549 }
550 
551 static inline int acpi_device_modalias(struct device *dev,
552                                 char *buf, int size)
553 {
554         return -ENODEV;
555 }
556 
557 #define ACPI_PTR(_ptr)  (NULL)
558 
559 #endif  /* !CONFIG_ACPI */
560 
561 #ifdef CONFIG_ACPI
562 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
563                                u32 pm1a_ctrl,  u32 pm1b_ctrl));
564 
565 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
566                                   u32 pm1a_control, u32 pm1b_control);
567 
568 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
569                                         u32 val_a,  u32 val_b));
570 
571 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
572                                            u32 val_a, u32 val_b);
573 
574 #ifdef CONFIG_X86
575 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
576 #else
577 static inline void arch_reserve_mem_area(acpi_physical_address addr,
578                                           size_t size)
579 {
580 }
581 #endif /* CONFIG_X86 */
582 #else
583 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
584 #endif
585 
586 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
587 int acpi_dev_runtime_suspend(struct device *dev);
588 int acpi_dev_runtime_resume(struct device *dev);
589 int acpi_subsys_runtime_suspend(struct device *dev);
590 int acpi_subsys_runtime_resume(struct device *dev);
591 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
592 int acpi_dev_pm_attach(struct device *dev, bool power_on);
593 #else
594 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
595 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
596 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
597 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
598 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
599 {
600         return NULL;
601 }
602 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
603 {
604         return -ENODEV;
605 }
606 #endif
607 
608 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
609 int acpi_dev_suspend_late(struct device *dev);
610 int acpi_dev_resume_early(struct device *dev);
611 int acpi_subsys_prepare(struct device *dev);
612 void acpi_subsys_complete(struct device *dev);
613 int acpi_subsys_suspend_late(struct device *dev);
614 int acpi_subsys_resume_early(struct device *dev);
615 int acpi_subsys_suspend(struct device *dev);
616 int acpi_subsys_freeze(struct device *dev);
617 #else
618 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
619 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
620 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
621 static inline void acpi_subsys_complete(struct device *dev) {}
622 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
623 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
624 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
625 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
626 #endif
627 
628 #ifdef CONFIG_ACPI
629 __printf(3, 4)
630 void acpi_handle_printk(const char *level, acpi_handle handle,
631                         const char *fmt, ...);
632 #else   /* !CONFIG_ACPI */
633 static inline __printf(3, 4) void
634 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
635 #endif  /* !CONFIG_ACPI */
636 
637 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
638 __printf(3, 4)
639 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
640 #else
641 #define __acpi_handle_debug(descriptor, handle, fmt, ...)               \
642         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
643 #endif
644 
645 /*
646  * acpi_handle_<level>: Print message with ACPI prefix and object path
647  *
648  * These interfaces acquire the global namespace mutex to obtain an object
649  * path.  In interrupt context, it shows the object path as <n/a>.
650  */
651 #define acpi_handle_emerg(handle, fmt, ...)                             \
652         acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
653 #define acpi_handle_alert(handle, fmt, ...)                             \
654         acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
655 #define acpi_handle_crit(handle, fmt, ...)                              \
656         acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
657 #define acpi_handle_err(handle, fmt, ...)                               \
658         acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
659 #define acpi_handle_warn(handle, fmt, ...)                              \
660         acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
661 #define acpi_handle_notice(handle, fmt, ...)                            \
662         acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
663 #define acpi_handle_info(handle, fmt, ...)                              \
664         acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
665 
666 #if defined(DEBUG)
667 #define acpi_handle_debug(handle, fmt, ...)                             \
668         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
669 #else
670 #if defined(CONFIG_DYNAMIC_DEBUG)
671 #define acpi_handle_debug(handle, fmt, ...)                             \
672 do {                                                                    \
673         DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);                 \
674         if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))          \
675                 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt),   \
676                                 ##__VA_ARGS__);                         \
677 } while (0)
678 #else
679 #define acpi_handle_debug(handle, fmt, ...)                             \
680 ({                                                                      \
681         if (0)                                                          \
682                 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
683         0;                                                              \
684 })
685 #endif
686 #endif
687 
688 struct acpi_gpio_params {
689         unsigned int crs_entry_index;
690         unsigned int line_index;
691         bool active_low;
692 };
693 
694 struct acpi_gpio_mapping {
695         const char *name;
696         const struct acpi_gpio_params *data;
697         unsigned int size;
698 };
699 
700 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
701 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
702                               const struct acpi_gpio_mapping *gpios);
703 
704 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
705 {
706         if (adev)
707                 adev->driver_gpios = NULL;
708 }
709 #else
710 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
711                               const struct acpi_gpio_mapping *gpios)
712 {
713         return -ENXIO;
714 }
715 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
716 #endif
717 
718 /* Device properties */
719 
720 #define MAX_ACPI_REFERENCE_ARGS 8
721 struct acpi_reference_args {
722         struct acpi_device *adev;
723         size_t nargs;
724         u64 args[MAX_ACPI_REFERENCE_ARGS];
725 };
726 
727 #ifdef CONFIG_ACPI
728 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
729                           acpi_object_type type, const union acpi_object **obj);
730 int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
731                                 acpi_object_type type,
732                                 const union acpi_object **obj);
733 int acpi_dev_get_property_reference(struct acpi_device *adev,
734                                     const char *name, size_t index,
735                                     struct acpi_reference_args *args);
736 
737 int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
738                       void **valptr);
739 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
740                               enum dev_prop_type proptype, void *val);
741 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
742                        enum dev_prop_type proptype, void *val, size_t nval);
743 
744 struct acpi_device *acpi_get_next_child(struct device *dev,
745                                         struct acpi_device *child);
746 #else
747 static inline int acpi_dev_get_property(struct acpi_device *adev,
748                                         const char *name, acpi_object_type type,
749                                         const union acpi_object **obj)
750 {
751         return -ENXIO;
752 }
753 static inline int acpi_dev_get_property_array(struct acpi_device *adev,
754                                               const char *name,
755                                               acpi_object_type type,
756                                               const union acpi_object **obj)
757 {
758         return -ENXIO;
759 }
760 static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
761                                 const char *name, const char *cells_name,
762                                 size_t index, struct acpi_reference_args *args)
763 {
764         return -ENXIO;
765 }
766 
767 static inline int acpi_dev_prop_get(struct acpi_device *adev,
768                                     const char *propname,
769                                     void **valptr)
770 {
771         return -ENXIO;
772 }
773 
774 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
775                                             const char *propname,
776                                             enum dev_prop_type proptype,
777                                             void *val)
778 {
779         return -ENXIO;
780 }
781 
782 static inline int acpi_dev_prop_read(struct acpi_device *adev,
783                                      const char *propname,
784                                      enum dev_prop_type proptype,
785                                      void *val, size_t nval)
786 {
787         return -ENXIO;
788 }
789 
790 static inline struct acpi_device *acpi_get_next_child(struct device *dev,
791                                                       struct acpi_device *child)
792 {
793         return NULL;
794 }
795 
796 #endif
797 
798 #endif  /*_LINUX_ACPI_H*/
799 

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